the 12a I had went for 325k before the apex seals went out, and my 81 Malibu came with the 229CI/3.8L that that rolled just over 390k with just a cam shaft replacement
13B N/A FC3S
13BT 88-92 FC3S (turbo)
13B-REW 93-95 FD3S
13B-RE Cosmo motor (don't know the years)
My 13B had 270,000 miles on it when a water jacket went out. EASY replacement and fix but we chose not to do it and just slap a JDM motor into it (13BT). More cost effective/time effecient in the end.
Jeep Inline 6 4.0L. They last forever, had one in our Comanche that lasted to 244k miles. It only died because my aunt never changed the oil when she had it. It then overheated and the block cracked. We put in a rebuilt short block and its still on the road, think its almost at 300k miles now.
there's a joke around my group that certain motors just were designed with failure points. 7m bhg's, chevy small blocks came from the factory with a bad rear main seal, wankers, er.. wankels blow apex seals every other oil change, dsms and timing belts...
it's just how these things work sometimes i guess
i will say this much though, for durability, my buddy nathan TRIED to kill his vg30det in his z31, and was unable to do it through our torture tests. i'm rather amazed actually... didn't have high miles, but it doesn't take many at 6k to put nails in coffins either haha!
my 96 tacoma 4 banger has 238,000 on it, doesnt burn a drop of oil, original clutch and timing chain. gotta replace those soon lol even though there still golden, engines spotless and taken care of its whole life. shes tight as a whistle and looks damn near brand new still
Honda B, D, F seris motors. I have seen several with 300k+ without rebuild. Toyota R series are tanks that outlive the cars they were put in. Most semi trucks go a million miles or so before they get retired.
1987 audi 5000 2.2L straight 5 turbo engine.
mine had 240k miles on it when i sold it, ran like a top (not much else on the car did).
Last i heard it was still going strong after the steering rack was swapped.
I keep hearing many good things about the older saab engines hitting the million mile club.
As many have said, 22r(e) engines are unstoppable. I had a 4runner with 223k on the clock, all original.
I've heard the Nissan Pickup 4banger is just as tough.
Also older Camry engines, I have a 261k 2se engine that doesn't leak a drop and I daily drive getting 31mpg. The newer 1mz is also a great engine, there's a reason Toyota used it for 9 years. The Camry auto transmissions don't last nearly as long as their engines, unfortunately.
Obviously none of these engines hold a candle to some of the diesels out there...
I nominate the Mopar 2.2 for the weakest engine, my Plymouth couldn't even make it to 60k without needing new pistons.
My 1994 Ford Exploder 4.0 has 258,000 miles on it and it does not use oil. It leaks oil out of multiple oriffices but does not burn it at all.
I also have a 2002 Chev. Suburban 5.3 and it has about 223,000 miles on it with no oil burn. I have used dino oil in both these cars with changes at about 5,000 miles with no problems.
Doesn't it seem that they build reliable motors back in the day? I had a 78 280z that I just could not kill. Over 300k when I sold it, and it ran for another yr or two b4 it died on that owner. The Nissan VG and VQ motors are great.
When Carlos Ghosn took over Nissan, in a press conference stated that market research shows that people will not keep a car for longer than a few yrs, so there is no need to build them to last 10+ yrs anymore.
As far as terrible motors go, the nissan qr25de is designed to grenade itself in a couple different ways. Seeing how it is the base motor for the altima (their most sold vehicle in the US), kinda makes you wonder.
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